Double black Wolf Creek, CO
Igloo Maintenance Building drops 267 vertical feet over 557 feet of skiing, with a steepest pitch of 41° about 50 feet below the top. That's steeper than 73% of the 2,251 double black runs we've measured in North America, and the 20th steepest of 131 named runs at Wolf Creek. It faces north.
Facing north at an average 29°, Igloo Maintenance Building gets about 44% of the winter sun that flat ground at Wolf Creek does, December through March. That's shadier than 96% of the runs we've measured, and the 9th shadiest named run at Wolf Creek. Its top sits at 11,490 feet.
Shaded snow stays colder and drier, so it holds powder longer after a storm and is slower to crust over or turn to slush in spring. Shading from ridges and trees isn't counted yet.
under 25°25–35°35–45°45°+ Hover to follow the line on the map.
Measured by ZRankings from 1-meter USGS lidar. Steepest pitch is the steepest stretch of about 50 vertical feet along the skiable line. Run lines come from OpenStreetMap and can sit a little off the skied path.